Motor Data Identification And Rotating Measurement; Overview - Siemens SINAMICS S120 Function Manual

4.14

Motor data identification and rotating measurement

4.14.1

Overview

There are two motor data identification options which are based on each other:
● Motor data identification (Page 204) with p1910 (standstill measurement)
● Rotating measurement (Page 207) with p1960
Note
For both types of motor data identification the following applies:
If there is a motor brake, then this must be open (p1215 = 2).
The two motor data identifications can be selected more easily via p1900. p1900 = 2 selects
the standstill measurement (motor not rotating). The setting p1900 = 1 also activates the
rotating measurement, i.e. with the setting of p1900 = 1 and p1960 depending on the current
control mode (p1300).
If a permanent-magnet synchronous motor is being used (p0300 = 2), then with p1900 > 1,
the encoder adjustment (p1990 = 1) is automatically activated. The procedure used can be
set in p1980.
Parameter p1960 is set depending on p1300:
● p1960 = 1, when p1300 = 20 or 22 (without encoder)
● p1960 = 2, when p1300 = 21 or 23 (with encoder)
The measurements, parameterized using p1900 are started in the following sequence after
the drive has been enabled:
Measurements and
conclusion
Standstill measurement Pulse inhibit activated and parameter is set to "0": p1910 = 0
Encoder adjustment
Rotating measurement
Successful completion
Note
To set the new controller setting permanently, the data must be saved in a non-volatile
memory.
Completion of the individual motor data identification runs can be read via parameters r3925
to r3928.
The motor data identification runs influence only the currently valid motor data set (MDS).
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
4.14 Motor data identification and rotating measurement
After successful measurement:
Pulse inhibit activated and parameter is set to "0": p1990 = 0
Pulse inhibit activated and parameter is set to "0": p1960 = 0
Pulse inhibit activated and parameter is set to "0": p1900 = 0
Vector control
203